Phyllostachys bambusoides Sieb. et Zucc. cv. Castillonis

They are the plants belong to the genus Phyllostazhys of the family Poaceae.

On April 18th(Thu.),in the garden of bamboo in Koko-en,we could find their flowers blooming in a 120-year cycle.

We found them for the first time.Their flowers is very small and the color of them is white.